* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: "Poppins", sans-serif;
    background: linear-gradient(to bottom, #121212, #1a1a1a);
    color: white;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
  }
  
  /* Loading Container */
  .loading-container {
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 400px;
  }
  
  /* Modern Spinner */
  .spinner-container {
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    position: relative;
  }
  
  .spinner {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 6px solid rgba(255, 255, 255, 0.1);
    border-top: 6px solid #9bf1e6;
    animation: spin 1.2s cubic-bezier(0.4, 0.0, 0.2, 1) infinite;
    box-shadow: 0px 0px 10px rgba(255, 255, 255, 0.6);
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  
  /* Title and Subtitle */
  .title {
    font-size: 32px;
    font-weight: bold;
    font-family: 'Lucida Grande';
    text-transform: uppercase;
    text-shadow: 2px 2px 8px rgba(255, 255, 255, 0.2);
    opacity: 0;
    animation: fadeIn 1.5s ease-in-out forwards;
  }
  
  .subtitle {
    color: #f5f108;
    font-size: 20px;
    font-weight: 600;
    margin-top: 8px;
    opacity: 0;
    animation: fadeIn 2s ease-in-out forwards 0.3s;
  }
  
  /* Overlay Button */
  .overlay {
    position: fixed;
    bottom: 20px;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 10;
  }
  
  .overlay-button {
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 16px;
    border-radius: 8px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease-in-out;
  }
  
  .overlay-button:hover {
    background: rgba(255, 255, 255, 0.3);
  }
  
  .camera-notice {
    color: #ffe0b3;
    margin-top: 16px;
    font-size: 16px;
    font-weight: 400;
    padding: 12px;
    border-radius: 6px;
    background-color: rgba(255, 126, 0, 0.15);
    border-left: 3px solid #ff9500;
  }
  
  /* Animations */
  @keyframes fadeIn {
    0% { opacity: 0; transform: translateY(-10px); }
    100% { opacity: 1; transform: translateY(0); }
  }
  
  /* Responsive */
  @media (max-width: 480px) {
    .title { font-size: 24px; margin-bottom: 30px; }
    .subtitle { font-size: 16px; padding-top:20px; margin-bottom: 20px;}
    .spinner-container { width: 80px; height: 80px; }
    .spinner { width: 80px; height: 80px; }
  }